C++ MasterScore::excerpts方法代码示例

void TestLinks::test5LinkedParts_94911()
      {
      MCursor c;
      c.setTimeSig(Fraction(4,4));
      c.createScore("test");
      c.addPart("electric-guitar");
      c.move(0, 0);     // move to track 0 tick 0

      c.addKeySig(Key(1));
      c.addTimeSig(Fraction(4,4));
      c.addChord(60, TDuration(TDuration::DurationType::V_WHOLE));

      MasterScore* score = c.score();
      score->addText("title", "Title");
      score->doLayout();
      // delete chord
      Measure* m = score->firstMeasure();
      Segment* s = m->first(Segment::Type::ChordRest);
      Element* e = s->element(0);
      QVERIFY(e->type() == ElementType::CHORD);
      score->select(e);
      score->cmdDeleteSelection();
      e = s->element(0);
      QVERIFY(e->type() == ElementType::REST);
      QVERIFY(e->links() == nullptr);

      // create parts//
      score->startCmd();
      QList<Part*> parts;
      parts.append(score->parts().at(0));
      Score* nscore = new Score(score);
      Excerpt ex(score);
      ex.setPartScore(nscore);
      ex.setTitle("Guitar");
      ex.setParts(parts);
      Excerpt::createExcerpt(&ex);
      QVERIFY(nscore);
      score->undo(new AddExcerpt(&ex));
      score->endCmd();

      // we should have now 1 staff and 2 linked rests
      QVERIFY(score->staves().size() == 1);
      e = s->element(0);
      QVERIFY(e->type() == ElementType::REST);
      QVERIFY(e->links()->size() == 2);

      // add a linked staff
      score->startCmd();
      Staff* oStaff = score->staff(0);
      Staff* staff       = new Staff(score);
      staff->setPart(oStaff->part());
      score->undoInsertStaff(staff, 1);
      Excerpt::cloneStaff(oStaff, staff);
      score->endCmd();

      // we should have now 2 staves and 3 linked rests
      QCOMPARE(score->staves().size(), 2);
      QCOMPARE(nscore->staves().size(), 1);
      QVERIFY(score->staves()[0]->linkedStaves()->staves().size() == 3);
      e = s->element(0);
      QVERIFY(e->type() == ElementType::REST);
      QVERIFY(e->links()->size() == 3);
      e = s->element(4);
      QVERIFY(e->type() == ElementType::REST);
      QVERIFY(e->links()->size() == 3);
      QVERIFY(score->excerpts().size() == 1);

      // undo
      score->undoStack()->undo();
      // we should have now 1 staves and 2 linked rests
      QVERIFY(score->staves().size() == 1);
      QVERIFY(score->staves()[0]->linkedStaves()->staves().size() == 2);
      e = s->element(0);
      QVERIFY(e->type() == ElementType::REST);
      QVERIFY(e->links()->size() == 2);
      QVERIFY(score->excerpts().size() == 1);

      // redo
      score->undoStack()->redo();
      // we should have now 2 staves and 3 linked rests
      QVERIFY(score->staves().size() == 2);
      QVERIFY(score->staves()[0]->linkedStaves()->staves().size() == 3);
      e = s->element(0);
      QVERIFY(e->type() == ElementType::REST);
      QVERIFY(e->links()->size() == 3);
      e = s->element(4);
      QVERIFY(e->type() == ElementType::REST);
      QVERIFY(e->links()->size() == 3);
      QVERIFY(score->excerpts().size() == 1);
      }

//.........这里部分代码省略.........
            int n = s->nstaves();
            int curSpan = 0;
            for (int j = 0; j < n; ++j) {
                  Staff* staff = s->staff(j);
                  int span = staff->barLineSpan();
                  int setSpan = -1;

                  // determine if we need to update barline span
                  if (curSpan == 0) {
                        // no current span; this staff must start a new one
                        if (span == 0) {
                              // no span; this staff must have been within a span
                              // update it to a span of 1
                              setSpan = j;
                              }
                        else if (span > (n - j)) {
                              // span too big; staves must have been removed
                              // reduce span to last staff
                              setSpan = n - j;
                              }
                        else if (span > 1 && staff->barLineTo() > 0) {
                              // TODO: check if span is still valid
                              // (true if the last staff is the same as it was before this edit)
                              // the code here fixes https://musescore.org/en/node/41786
                              // but by forcing an update,
                              // we lose custom modifications to staff barLineTo
                              // at least this happens only for span > 1, and not for Mensurstrich (barLineTo<=0)
                              setSpan = span;   // force update to pick up new barLineTo value
                              }
                        else {
                              // this staff starts a span
                              curSpan = span;
                              }
                        }
                  else if (span && staff->barLineTo() > 0) {
                        // within a current span; staff must have span of 0
                        // except for Mensurstrich (barLineTo<=0)
                        // for consistency with Barline::endEdit,
                        // don't special case 1-line staves
//TODO                        s->undoChangeBarLineSpan(staff, 0, 0, (staff->lines() - 1) * 2);
                        }

                  // update barline span if necessary
                  if (setSpan > 0) {
                        // this staff starts a span
                        curSpan = setSpan;
                        // calculate spanFrom and spanTo values
//                        int spanFrom = staff->lines() == 1 ? BARLINE_SPAN_1LINESTAFF_FROM : 0;
//                        int linesTo = masterScore->staff(i + setSpan - 1)->lines();
//                        int spanTo = linesTo == 1 ? BARLINE_SPAN_1LINESTAFF_TO : (linesTo - 1) * 2;
//TODO                         s->undoChangeBarLineSpan(staff, setSpan, spanFrom, spanTo);
                        }

                  // count off one from barline span
                  --curSpan;

                  // update brackets
                  for (BracketItem* bi : staff->brackets()) {
                        if ((bi->bracketSpan() > (n - j)))
                              bi->undoChangeProperty(Pid::BRACKET_SPAN, n - j);
                        }
                  }
            }

      //
      // there should be at least one measure
      //
      if (masterScore->measures()->size() == 0)
            masterScore->insertMeasure(ElementType::MEASURE, 0, false);

      const QList<Excerpt*> excerpts(masterScore->excerpts()); // excerpts list may change in the loop below
      for (Excerpt* excerpt : excerpts) {
            QList<Staff*> sl       = excerpt->partScore()->staves();
            QMultiMap<int, int> tr = excerpt->tracks();
            if (sl.size() == 0)
                  masterScore->undo(new RemoveExcerpt(excerpt));
            else {
                  for (Staff* s : sl) {
                        const LinkedElements* sll = s->links();
                        for (auto le : *sll) {
                              Staff* ss = toStaff(le);
                              if (ss->primaryStaff()) {
                                    for (int j = s->idx() * VOICES; j < (s->idx() + 1) * VOICES; j++) {
                                          int strack = tr.key(j, -1);
                                          if (strack != -1 && ((strack & ~3) == ss->idx()))
                                                break;
                                          else if (strack != -1)
                                                tr.insert(ss->idx() + strack % VOICES, tr.value(strack, -1));
                                          }
                                    }
                              }
                        }
                  }
            }

      masterScore->setLayoutAll();
      masterScore->endCmd();
      masterScore->rebuildAndUpdateExpressive(MuseScore::synthesizer("Fluid"));
      seq->initInstruments();
      }